QT161S-32.000MDDV-T

Overview

The QT161S-32.000MDDV-T is a surface-mount quartz crystal oscillator manufactured by QST. It operates at a fundamental frequency of 32 MHz with a load capacitance of 8 pF. The component exhibits a frequency stability of ±20 ppm at 25°C and ±20 ppm across the operating temperature range of -20°C to +70°C. It features an equivalent series resistance (ESR) of 80 Ohms and utilizes a 4-SMD, no-lead package with dimensions of 1.6 x 1.2 x 0.35 mm.

Feature Summary

• Seam seal construction for enhanced environmental protection
• Compact 4-SMD no-lead surface mount design
• Stable frequency performance within specified industrial temperature ranges

Applications

• Clock generation for microcontrollers
• Timing references for communication interfaces
• Frequency control in consumer electronics

Procurement Notes

Verify the manufacturer designation on official documentation, as some sources list TXC Corporation while others specify QST. Confirm the specific suffix 'MDDV' aligns with the required 8 pF load capacitance and ±20 ppm stability specifications. Ensure the package dimensions match the 1.6 x 1.2 mm footprint requirements for the target PCB layout.

Selection Notes

Select this component when a small form factor is required for 32 MHz timing applications. The 8 pF load capacitance must match the oscillator circuit design. Consider the ±20 ppm stability requirement against system timing tolerances. Verify compatibility with automated pick-and-place equipment due to the no-lead SMD package style.

Part Context

This part belongs to the QT161S series of seam-seal crystals. Variants within this series share similar physical dimensions but differ in frequency and stability ratings. The model number indicates specific electrical characteristics including the 32 MHz output and 8 pF load requirement.

Replacement Considerations

Direct substitutes include other 32 MHz crystals with identical 1.6x1.2mm SMD packages and 8pF load capacitance. Verify that alternative parts meet the same ±20 ppm stability and ESR specifications. Cross-reference pinout and mounting pad layouts to ensure mechanical compatibility.